What is the function of the auxiliary impeller of the self sealing self-priming pump?
Self sealing self-priming pump is mainly composed of pump body, impeller, pump cover, guide vane, auxiliary impeller, pump shaft, connecting frame, electric air control valve and so on. The pump body is composed of suction chamber, liquid storage chamber, gas-liquid separation chamber and so on.
Because the pump has a unique function of the exhaust, so the pump can transport the liquid containing a gas and does not need to install the valve. The pump is equipped with electric air control valve operation, control valve closed, sealing is realized; after the shutdown control valve is opened, the destruction of suction in the vacuum line, after stopping the pump cavity to prevent the liquid due to the cylinder suction and the suction pipe flow to the pump chamber, save enough fluid to continue to complete the process of self absorption. In order to achieve the "first permanent drainage and imbibition".
The pump in the normal starting, the impeller suction chamber of the liquid suction pipe and the air suction, liquid gas mixture in centrifugal impeller rotating speed of the guide vane thrown into the gas-liquid separation chamber, due to the sudden reduced velocity, different gas and liquid ratio, lighter gas from mixed liquid separated and discharged out of the pump, mixing again deaerated liquid back into internal working chamber and impeller sucked from the air suction pipe, the impeller rotation under the action of the pump entrance soon formed a certain vacuum degree, so as to achieve the goal of self absorption.
